What we do
Radius Subterra delivers comprehensive pipeline engineering services, from installation and live connections to testing, maintenance and rehabilitation.
Our teams work across gas, water and biogas networks, offering pipeline rehabilitation solutions and supporting safe, compliant and technically assured pipeline performance throughout every stage of an asset’s lifecycle.
Radius Subterra provides a full suite of pipeline engineering services that support the construction, modification, maintenance and rehabilitation of critical utility and industrial networks. As part of the Radius Group, we integrate advanced products with specialist site delivery to offer end-to-end solutions that maintain network performance and long-term integrity.
Our work spans the entire pipeline lifecycle. We install new polyethylene (PE) and metallic mains, deliver planned works, and execute network modifications using under-pressure connections and flowstopping methods. These techniques enable safe, controlled tie-ins to live networks, maintaining continuity of supply while supporting essential upgrades and extensions.
We provide comprehensive testing and commissioning services, including hydrostatic and pneumatic testing, chlorination, dechlorination, purging and final verification, to ensure assets are introduced safely into service. Our teams also support decommissioning activities, managing isolations, purging and removal of redundant network sections.
Our specialist rehabilitation services include PE lining technologies, spray lining and trenchless solutions that strengthen pipelines, restore internal condition and extend service life. These methods reduce excavation, minimise environmental impact and maintain flow capacity, providing a cost-effective alternative to full replacement.
Our delivery capability is supported by key partners: FlowStop Services, FlowStop Engineering and MTS Contracting, enabling enhanced expertise in isolation, drilling and pressure testing. Their capabilities complement our core services, allowing us to respond effectively to both routine and emergency works across the UK and beyond.
Each project is delivered by trained engineers and technicians under robust QHSE systems. Through engineering-led planning, controlled site operations and detailed reporting, Radius Subterra provides safe, reliable and compliant pipeline engineering solutions tailored to the needs of utilities, developers, industrial operators and energy networks.
Contact us
Ready to progress your next pipeline project?
Radius Subterra’s specialist engineering teams are here to support you with safe, efficient and technically assured solutions across every stage of the asset lifecycle.
Get in touch by phone or email to discuss your requirements and speak directly with our experts.
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